protected static void writeHistoryFile() {
if ((History.HISTORY_FILE.isFile() && History.HISTORY_FILE.canWrite())
|| (!History.HISTORY_FILE.exists())) {
try {
BufferedWriter out = new BufferedWriter(new FileWriter(History.HISTORY_FILE, false));
out.write("<?xml version=\"1.0\"?>\n");
out.write("<pcsim2 version=\"" + History.PLATFORM_VERSION + "\">\n");
out.write("\t<pcf dir=\"" + history.lastPCFDirectory.getAbsolutePath() + "\"/>\n");
out.write("\t<dcf dir=\"" + history.lastDCFDirectory.getAbsolutePath() + "\"/>\n");
out.write("\t<scripts dir=\"" + history.lastScriptsDirectory.getAbsolutePath() + "\"/>\n");
out.write("\t<batch dir=\"" + history.lastBatchDirectory.getAbsolutePath() + "\"/>\n");
for (int i = 0; i < History.MAX_NUM_HISTORY_FILES; i++) {
if (history.histFiles[i] != null) {
out.write("\t<history file=\"" + history.histFiles[i].getAbsolutePath() + "\"/>\n");
}
}
out.write("</pcsim2>");
out.close();
} catch (IOException e) {
if (PC2UI.logger != null) {
PC2UI.logger.error(
PC2LogCategory.UI,
PC2UI.subCat,
"PCSim2 encountered an error while trying to write the history file information.\n"
+ e.getMessage());
}
}
}
}
public History parse() throws SAXException, IOException {
xr = XMLReaderFactory.createXMLReader();
if (xr != null) {
xr.setContentHandler(this);
if (History.HISTORY_FILE.exists()) {
FileReader reader = new FileReader(History.HISTORY_FILE);
xr.parse(new InputSource(reader));
} else {
history = History.getInstance();
writeHistoryFile();
}
return history;
} else throw new SAXException("XMLReader did not get created successfully.");
}
/**
* This is a method that must be overwritten for the SAXParser. It is called at the start of each
* element and is were the HistoryParser begins to separate the various tags into their respective
* objects. Validation of each mandatory attribute and children elements begins in this method.
*
* <p>(non-Javadoc)
*
* @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String,
* java.lang.String, org.xml.sax.Attributes)
*/
@Override
public void startElement(String uri, String name, String qName, Attributes atts)
throws SAXException {
logger.trace(PC2LogCategory.UI, subCat, "starting element (" + qName + ")");
logger.trace(PC2LogCategory.UI, subCat, " number of attributes: " + atts.getLength());
curTag = qName;
boolean unrecognizedTag = false;
int count = atts.getLength();
if (qName.equals(PCSIM2)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(VERSION)) {
// Add any versioning operations that might be needed in the future here
// for this initial release though, there is no operation as the version
// is assigned automatically to the History class.
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ PCSIM2
+ " tag. It has been ignored.");
}
}
if (history == null) history = History.getInstance();
return;
} else {
switch (qName.charAt(0)) {
case 'b':
if (qName.equals(BATCH)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastBatchDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ BATCH
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 'd':
if (qName.equals(DCF)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastDCFDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ DCF
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 'h':
if (qName.equals(HISTORY)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(FILE)) {
String value = atts.getValue(i);
File f = new File(value);
if (f.isFile() && f.canRead()) history.addHistoryFile(f);
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ DCF
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 'p':
if (qName.equals(PCF)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastPCFDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ PCF
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 's':
if (qName.equals(SCRIPTS)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastScriptsDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ SCRIPTS
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
default:
throw new PC2XMLException(
History.HISTORY_FILE.getName(),
"Encountered unexpected tag(" + qName + ") element.",
l);
}
}
if (unrecognizedTag)
throw new PC2XMLException(
History.HISTORY_FILE.getName(), "Encountered unexpected tag(" + qName + ") element.", l);
}
